FIELD: physics, instrumentation technology.
SUBSTANCE: invention relates to probing spectroscopy, which is involved with the designing of devices and methods of investigating surface spectra with nano-resolution. Method of measuring energy spectra of quasi-particles in a condensed medium comprises exciting quasi-particles with the required properties, propagation, reflection, re-propagation of the reflected quasi-particles, detection of the reflected quasi-particles, processing of the obtained information and reconstruction of the quasi-particle spectrum in the investigated sample. Measurement can be carried out once or twice.
EFFECT: invention simplifies adjustment, improves stability of operation and reduces distortion.
2 cl, 2 dwg
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